Redescriptions of Poorly Known Species of Jumping Spiders (Araneae: Salticidae) from South Africa and Namibia

Redescriptions of Poorly Known Species of Jumping Spiders (Araneae: Salticidae) from South Africa and Namibia

Zootaxa 3686 (2): 165–182 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3686.2.3 http://zoobank.org/urn:lsid:zoobank.org:pub:3166E584-2758-491D-BB60-A3921271E08C Redescriptions of poorly known species of jumping spiders (Araneae: Salticidae) from South Africa and Namibia GALINA N. AZARKINA1 & STEFAN H. FOORD2 1The Laboratory for Invertebrate Systematics, The Institute of Systematics and Ecology of Animals, Siberian Branch of the Russian Academy of Sciences, Frunze Street 11, Novosibirsk 630091, Russia. E-mail: [email protected] 2Department of Zoology and Centre for Invasion Biology, University of Venda, Thohoyandou, 0950, Republic of South Africa. E-mail: [email protected] Abstract The following seven species of southern African Salticidae, known only from type specimens or one sex, and last de- scribed in the early 20th century, are redescribed: Baryphas ahenus Simon, 1902, Brancus muticus Simon, 1902, Euophrys quadrispinosa Lawrence, 1927, Evarcha natalica Simon, 1902, Mogrus macrocephalus Lawrence, 1927, Thyene dama- rensis Lawrence, 1927 and Thyene bilineata Lawrence, 1927. Two new synonyms are proposed, Thyene damarensis Law- rence, 1927 syn. n. with Hyllus dotatus (Peckham et Peckham, 1903) and Thyene bilineata striatipes Lawrence, 1927 syn. n. with T. bilineata Lawrence, 1927. One new combination is proposed, Thyenula natalica comb. n. (ex Evarcha). Lec- totypes for Baryphas ahenus Simon, 1902 and Thyene bilineata Lawrence, 1927 are designated. The female of Brancus muticus Simon, 1902 is described for the first time. Key words: new synonymy, new combination, Salticidae, jumping spiders Introduction The family Salticidae is the largest family in the order Araneae with 5570 known species in 591 genera (Platnick 2013). The family has a worldwide distribution and its diversity peaks in the tropical regions of the world. Currently, 980 species and 144 genera are known from the Afrotropical Region. A third of this, 344 species in 74 genera, are found in southern Africa (sensu Dippenaar-Schoeman & Jocqué 1997). Some of these southern African species are only known from original, often poor, descriptions and/or were described on the basis of a single or a few specimens that only include one sex. It is likely that some of these species could fall into synonymy and the redescription of type specimens is therefore an important step in determining the taxonomic status of these taxa. In this paper we redescribe seven southern African jumping spider species, first described in the early twentieth century and not included in any subsequent revisions. All seven species are illustrated and their distributions mapped. Material and methods This paper is based on the type material deposited in museums of Republic of South Africa (Iziko and Natal Museums, RSA) and the Muséum National d’Histoire Naturelle (Paris, France). Non-type material used in comparisons is deposited in the National Collection of Arachnida (Pretoria, RSA) and in the Royal Museum for Central Africa (Tervuren, Belgium). Specimens for this study were borrowed from the following museums: SAM = Iziko Museum, Cape Town, Republic of South Africa (D. Larsen); NMSA = Natal Museum, Pietermaritzburg, Republic of South Africa (A. Ndaba); MRAC = Royal Museum for Central Africa, Tervuren, Belgium (R. Jocqué); MNHN = Muséum national d’Histoire naturelle, Paris, France (E.-A. Leguin), NCA = National Collection of Arachnida, Plant Protection Research Institute, Pretoria, Republic of South Africa (P. Marais). Accepted by T. Szuts: 28 May 2013; published: 11 Jul. 2013 165 A total of 48 specimens in seven species were examined. Specimens were studied in ethanol and colors refer to that of preserved specimens. All drawings were made with the aid of a reticular eyepiece attached to an MBS-10 stereomicroscope and with the drawings apparatus attached to a Zeiss Discovery V12. Digital images were captured with a Zeiss stereomicroscopes (Discovery V12 and Stemi 2000) and stack images were combined using the Helicon Focus software. The drawings were edited with Adobe Photoshop. Left palps were illustrated except for Figures 17, 20 and 61-62 where the right palp were mirrored. Where locality co-ordinates were not provided on specimen labels or were not available in the institutional databases, they were traced using the Geographical Names list (http://www.geographic.org/) and old topographic maps and indicated in square brackets. Abbreviations used in the text: AME, anterior median eyes; Fm, femur; Pt, patella; Tb, tibia; Mt, metatarsus; RSA, Republic of South Africa. The sequence of leg segments in measurement data is as follows: femur + patella + tibia + metatarsus + tarsus. All measurements are in mm. Leg spination follows Ono (1988). FIGURE 1. Distribution records of Baryphas ahenus (circle; ? exact locality unknown), Brancus muticus (star), Hyllus dotatus (square) and Mogrus macrocephalus (triangle). Taxonomy Baryphas ahenus Simon, 1902 Figs 1–17 Baryphas ahenus Simon, 1902: 42 (♂♀, examined, lectotype here designated). B. ahenus: Simon 1903: 681, figs 807–809 (♂); Peckham & Peckham 1903: 207, pl. 24, fig. 2-2b (♂); Lessert 1925: 349, fig. 13 (♀); Prószyński 1987: 5 (♂♀); Wesołowska & Cumming 2008: 169, figs 2–8 (♂♀); Wesołowska & Haddad 2009: 23; Haddad & Wesołowska 2011: 53, figs 1–2 (♂♀). Type material: Lectotype ♂, designated here (MNHN, #20204) Zululand / C. M. [=Republic of South Africa, KwaZulu-Natal, exact locality and date unknown (C. Martin)]. 166 · Zootaxa 3686 (2) © 2013 Magnolia Press AZARKINA & FOORD FIGURES 2–10. Baryphas ahenus. 2 male left palp (major form), ventral view; 3 male left palp (paralectotype), ventral view; 4 ditto, retrolateral view; 5 scheme of insemination ducts; 6 label of type specimens; 7 Baryphas ahenus major label; 8 epigyne, ventral view; 9 ditto; 10 spermathecae, dorsal view. Scale bars: 2–4, 8–10, 0.1 mm. Paralectotypes: 3♂, 14♀ (MNHN, #20204) together with lectotype. Other material: 2♂ (MNHN, #20393, Baryphas ahenus major) Natal / C.M. [=Republic of South Africa, KwaZulu-Natal, exact locality and date unknown (C. Martin)]. Diagnosis. This species differs from other Baryphas species in the shape of the tibial apophysis which is relatively short, with apical teeth, and the absence of a clearly visible basal bulb on palpal tegulum (Figs 2–4). JUMPING SPIDERS FROM SOUTH AFRICA AND NAMIBIA Zootaxa 3686 (2) © 2013 Magnolia Press · 167 FIGURES 11–17. Baryphas ahenus. 11 male habitus, dorsal view (paralectotype); 12 ditto, dorsal view (major form); 13 ditto, ventral view; 14 male "face", 15 female habitus , dorsal view ("orange stripes"); 16 ditto, dorsal view ("white stripes"); 17 ditto, ventral view. Scale bars: 1 mm. Description. Male: Carapace: 3.40–5.40 long, 2.90–4.30 wide, 2.00–2.70 high. Abdomen: 3.40–4.90 long, 2.60–3.30 wide. Eye field: 1.30–1.50 long, anterior 1.60–2.10 wide, posterior 1.80–2.50 wide. Cheliceral length 1.50–2.30. Clypeal height 0.25–0.30. Diameter of AME 0.50–0.70. Length of leg segments: I 2.10+1.40+1.50+1.40+0.85; II 1.90+1.10+1.20+1.10+0.60; III 2.00+1.10+1.10+1.40+0.70; IV 1.90+1.00+1.20+1.30+0.70. Leg spination: I: Fm d 1-1-4; Pt pr 1; Tb pr 1-1, rt 0-1, v 1-2-2ap; Mt pr and rt 1-1ap, v 2-2ap. II: Fm d 1-1-4; Pt pr 1; Tb pr 1-1-1, v 1-2-2ap; Mt pr and rt 1-1ap, v 2-2ap. III: Fm d 1-2-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1, v 1-0-2ap; Mt pr and rt 1-0-2ap, v 2-2ap. IV: Fm d 1-2-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1, v 2-0-2ap; Mt pr and rt 1-1-2ap; v 0-2-2ap. Carapace high, red-brown, covered with dark brown hairs and whitish-transparent iridescent scales (Figs 11–12). Clypeus and cheeks brown to yellow-brown, with one row of brown bristles, covered with whitish-transparent scales (Fig. 14). Chelicerae large, robust, with small fangs, red- brown, covered with long brown hairs. Sternum brown. Abdomen yellow-brown, ventrally with brown hairs and whitish-transparent scales. Dorsum brown, covered with dense long brown hairs, with pattern of white scales: small patch in center of abdomen and two transversal short stripes on lateral sides. Book-lungs are yellow. 168 · Zootaxa 3686 (2) © 2013 Magnolia Press AZARKINA & FOORD Spinnerets are brown. All legs brown, covered with long brown hairs and whitish-transparent iridescent scales. Ventrally with dense brown hairs. Palps brown, covered with brown hairs and whitish-transparent scales. Palpal structure as in Figs 2–4. Female. Carapace: 3.10–3.60 long, 2.50–3.00 wide, 1.70 high. Abdomen: 3.20–4.80 long, 2.20–3.60 wide. Eye field: 1.30–1.40 long, anterior 1.70–1.90 wide, posterior 1.80–2.00 wide. Cheliceral length 1.20–1.60. Clypeal height 0.20–0.25. Diameter of AME 0.55–0.60. Length of leg segments: I 1.90+1.20+1.30+1.00+0.70; II 1.80+1.10+1.00+0.90+0.60; III 2.20+1.30+1.20+1.30+0.70; IV 2.10+1.10+1.40+1.70+0.65. Leg spination: I: Fm d 1-1-4; Pt pr 1; Tb pr 1-1-1, v 1-2-2ap; Mt pr 1-1ap, rt 0-1ap, v 2-2ap. II: Fm d 1-1-5; Pt pr and rt 1; Tb pr 1-1-1, rt 1-1, v 1-2-2ap; Mt pr and rt 1-1ap, v 2-2.

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